CVE-2021-43527Not scoredCWE-787

CVE-2021-43527: Mozilla NSS vulnerability

Mozilla · NSS

Vendor fix available · Affected: Mozilla NSS · Exploitation: likely to be exploited (10% or more)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

17.6%probability of exploitation in the next 30 days

97th percentile

050100

Higher than 97% of scored CVEs

Not scored yet. The CVE record carries no CVSS score.

DescriptionCVE.org

NSS (Network Security Services) versions prior to 3.73 or 3.68.1 ESR are vulnerable to a heap overflow when handling DER-encoded DSA or RSA-PSS signatures. Applications using NSS for handling signatures encoded within CMS, S/MIME, PKCS \#7, or PKCS \#12 are likely to be impacted. Applications using NSS for certificate validation or other TLS, X.509, OCSP or CRL functionality may be impacted, depending on how they configure NSS. *Note: This vulnerability does NOT impact Mozilla Firefox.* However, email clients and PDF viewers that use NSS for signature verification, such as Thunderbird, LibreOffice, Evolution and Evince are believed to be impacted. This vulnerability affects NSS < 3.73 and NSS < 3.68.1.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

Mozilla · NSSbefore 3.73; before 3.68.1

On the Atlas

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Exploitation: Likely to be exploited (10% or more). EPSS gives it a 10% or higher chance of exploitation in the next 30 days.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Out-of-bounds Write · Memory Corruption
Vendor: Mozilla
Published: December 2021
Band: Likely to be exploited (10% or more), December 2021

CoverageNo articles yet

No CyberSIXT article names CVE-2021-43527 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.